Crimping-tool



W. F. STONE.

CRIMPING TOOL.

APPLlcATIoN man :uw 16A ma.

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CRINIPING'TOOL.

APPLICATION mw JULf16.1914.

@5Hv @e K2 .latemed J une 3, 1919.

2 SHEETS bHEET 2 ATENT FFI'CE..

WILLI F. STONE, OF PORTLANIL MAINE; ASSIGNOR TO NATIONAL METAL SEAL CORPORATION, A CORPORATION OF MAINE.

cmMPING-root.

Specicaton of Letters Patent.

atented June 3, ,1919.

Application led July 16, 1914. Serial No. 851,38?.

To all whom t may concern:

Be it known that I, WILLIAM F. STONE, a citizen of the United States, residing at Portland, county of Cumberland, State of Maine, have invented certain new and useful Improvements in Crimping-Tools, of which the following is a specification.

This invention relates to crimping tools and particularly to a crimping tool for clenchin the sealing lugs of a closure under the shoulgder of a vessel neck.

My present invention as a' whole is a development of and improvement upon the` crimping tool ofthe Chellis Patent No. 1,067,797 granted July 22, 1913. Although both tools are adapted to the crimping of the same or substantially similar seals and both have the same general object in view, the tool of my present invention di'ers yin essential features irom the patented tool.

' The construction and operation of my present invention will be more fully disclosed in the s eciication that follows. In the drawings orming a part of that specification I have shown as an illustrative embodiment a form of tool which I have found satisfactory in practice. Throughout speci lication and drawings like reference numerals are correspondingly applied, and in these drawings:

Figure 1 is an elevation in vertical section, of a crimping tool in accordance with my .invention and illustrating the tool in crimplng position upon a vessel mouth and prior to crimping. Fig. 2 is a plan section of the crimping jaws.

Fig. 3 is a section at right anglesjo Fig. 1 showing the tool prior to clenching a closure'.

Fig. 4 is a view similar to Fig. 3 showing the tool after clenching a closure.

Fig. 5 is a transverse section on the line Fig. G is a section showing a closure and vessel mouth after crimping, and- Fig. 7 is a view of one .form of closure.

-The crimping tool as a whole is prefer-Y y been previously placed over the delivery ving handle 1l pivoted at 12 in suitable ears its under face as indicated and provides a stationary die or sea-ling head for the closure against which the seal bears. v

Surmountin the head 2 is a stationary clenchingl han le I3 having an integral sleeve or collar portion 4 encircling .the lower end of .the spindle and resting upon the head 2. Thefsleeve 4 provides a seat vand stop for av cylindrical slide 5 normally resting upon the upper edge of the sleeve and reciprocable vertically along the Aspindle 1.

The handle 3 is transversely recessed on its upper face near its inner end as indicated at 6 (Fig. 1) and has a bore in which fits an adjusting screw 7 which pins one end of a link 8 to the handle 3. The screw 7 has an eccentric portion on which one end of the link 8 is pivoted. The other end of the link is connected at 9 to the end 10 of an operatprojecting from the upper end of the slide 5. The connections described serve to litt the slide 5 when the handle 1l is depressed.

The upward movement of the slide 5 is resisted by a coil spring'l3 wrap ed about a pin 14 interposed between the odset upper edge of the slide and a stationary handle 15 fastened to said spindle labove the slide. The action of the spring 13 is therefore to return the slide 5 to normal position after each reciprocation.

rlhe slide 5 has two oppositely disposed lateral wings 16. Pivoted between its ends at 17 to each wing is a laterally movabley crimping jaw 18. The jaws 18 are normally held in expanded position by spring pressed pins 19 seated in sockets in the jaws-'below the ivots 17 and bearing against the slide 5. tits lower end each jaw terminates` in a segmental upturned crimping edge 22 which is circularly grooved at 23 to receive and clench the sealing lugs of the closure when the jaws are brought together.

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The jaws above the pivots 117 are beveled i outwardly and upwardly as indicated at 24. rIhe inclines 24 terminate in outwardly inclined faces 25 which have a greater pitch than the faces 24. The faces 25 define with the opposite inwardly curved faces 26 of the head 27 of the stationary handle 15 recesses or ockets in which are received rolls 28 j having their studs journaled -in suitable ears on the head voi? the handle 15. The handle 15 embraces the top e'nd of the spindle and has a shouldered bearing thereon. The spindle is surmounted by a cross head 29 secured thereto and having a bearing on the handle 15. l

The can or other containing vessel A has a nozzle or neck portion B terminating at its top end in a horizontal circular seat C' the nozzle, which opening is sealed by a suitable packing G- carried by the cap, see Figs. 1, 3 and 4. The cap has a circumferential depending skirt or iiange H from which engaginjg` fingers J and K depend. The lingers J are clenched permanently as hinge lugs while the fingers K are lightly engaged as deformable lugs. These deformable lugs may be formed as at K1 in Fig. 6.

The number of engaging fingers and their relative arrangement about the circumference of the cap may be varied. In the form of closure shown in Fig. 7 there is pivoted at P to the cap F a laterally swinfgable cover L provided with a spring locking lip M at a point. substantially opposite the pivot P. This locking lip is not crimped by the clenching jaws but is formed before the closure is applied to the container.

In use, the, crimping tool is carried from can to can by means ofthe stationary handle 15 which simply serves as an arm whereby the. tool may be carried. Aclosure is placed in position over the delivery opening of the filled can and the tool placed around the can neck in the manner shown in Fig. 3. This` positionsthe head or stationary die 2 on the top of the cap with the crimping jaws held free of the can by reason of the spring pressed pins 19. The stationary clenching handle 3 is Igrasped with one hand to steady and properly center the tool on the can head and the operating handlell is grasped with the other hand and depressed. The depression of the handle 1l through the link 8 draws up the slide 5 on its guide 1 against the tension of the coil spring 13. This movement of the slide. draws up the crimping aws which are pivoted thereto between their ends. As the cam faces 25 of the aws 18 ride up past the rolls 28 the upper ends of the jaws are forced outwardly. This causes the lower endsof the jaws to move inwardly toward each other and brings their die ortions 22 between fingers J and the nozz e neck, with said fingers lying in the segmental grooves 23. T eV continued upward and inward movement of the jaws causes the grooves 23 to turn the fingers in and under the rim E of the nozzle. The cap is now clenched upon the nozzle. As soon as pressure is removed from the operating handle 11 the spring 13 tends to automatically and jaws to original position.

Where the number and arrangement of the fingers J differ from the form shown in the drawings, the crimping dies 22 may be changed slightly; to "accord. Various other modifications in the form and construction of my device may obviously be made, all without departing from the spirit of my invention if within the limits of the appended claims.

What 1 therefore claim and desire to secure by Letters Patent is:

1. A crimping tool for crimpng the lugs of a closure 'beneath the shouldered mouth of a containing vessel, comprising a spindle having a head adapted to rest upon the closure, a slide reciprocable on said spindle, y a stationary clenching handle mounted upon return the slide 5 and thus the handle crimping jaws. effective to expand said upper Y ends and contract said lower ends when the slide is raised, and means for automatically returning said slide to original position after each reciprocation.

2. A 'crimping tool for crimping the lugs of a closure beneath the shouldered mouth of a containing vessel, comprising aspindle, a slide reciprocable on said spindle, a stationary clenching handle mounted upon said spindle, a pair of crimping jaws pivoted between their ends to said slide and having their lower ends formed as crimping -surfaces, an operating handle fulcrumed on `said slide and having an adjustable link connection with said fixed clenching handle, means having a sliding cam engagement with the upper ends of said crimping jaws," eifectiveto expand said upper ends and contract said lower ends when the slide is raised, and means effectively disposed for automatically returning said slide to original position after each reciprocation.

3. A crimping tool for crimping the lugs of a closure beneath 'the shouldered mouth of a containing vessel, comprising a spindle having a head adapted to rest upon the clo-Y sure, a slide reciproca-ble on said spindle, a stationary clenching handle having a collar portion embracing said spindle between said head and slide and providing astop to limit the downward movement of said slide, a pair of oppositely disposed lateral wings on said asesinas said iixed clenching handle, means having a roller bearing with the upper ends crimping jaws, eieetive to expand said upper ends and contract said lower ends when the slide is raised, and a spring wrapped pin effectively disposed for automatically returning said slide to original position after each reciprocation.

el. ln crimping means, a movable element, a -pai-r of laterally movable members pivoted between their ends to said movable element at opposite sides thereof, each member having an. outwardly directed surface at its upper end and an inwardly curved substantially semi-circular crimping portion at its lower end, an operating handle pivoted to said movable element and a link connected thereto and fulcrumed below said pivot for moving said movable element in one dire@- tion, a stationary member having outwardly curved walls, and rolls interposed between said walls and the inclined surfaces of said pair of pivoted members for moving the upper ends of said members laterally.

5. ln apparatus for seating closures upon containers, a stationary,l holdin member comprising a head disposed to ar upon the closure, and a guiding stem, a stationary handle sleeved about said stem above said head, a slide reciprocable upon said stem,

a movable handle pivoted to said slide and disposed in digitally spannable relation to the stationary handle whereby both handles may be grasped in one hand, and a pair of oppositely' dlsposed inwardly movable seating members pivoted to said sllde.

closure, .and a guiding stem, a stationary i handle sleeved about said stem above said head, a slide reciproeable upon said stem, and limited in its downward movement by the sleeve portion of said stationary handle, a movable handle pivoted to 'said slide and disposed in digitally spannable relation to the stationary handle whereby both handles may be grasped in one hand, and a pair'of oppositely disposed inwardly movable seating members -.pivoted to said slide.

ln apparatus for seating closures upon containers, a stationary holding member comprising a headdisposed to bear upon the closure, and a guiding stem, a stationary handle sleeved about said stem above said head, a slide reciprocab-le upon said stem7 a movable handle pivoted to said slide and disposed in digitally spannable relation to theilstationary handle whereby both handles may be grasped in one hand,` a pair of oppositely disposed inwardly -movable seating members pivoted to said slide, and a link connected to said movable handle and ulcrumed upon said stationary handle below the pivot for the movable handle.

ln testimony whereof I affix my signature in presence of two witnesses.

WILLIAM F. STONE.

Witnesses:

HOWARD L. HUTCHINsom FRED W. DAvIEs. 

